Recombinant Rhinolophus ferrumequinum Ubiquitin-like protein 4A (UBL4A)

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Description

Production and Purification

This recombinant protein is synthesized using a yeast expression system, chosen for its ability to perform eukaryotic post-translational modifications while maintaining cost efficiency .

Production Details:

ParameterSpecification
Expression SystemSaccharomyces cerevisiae (yeast)
Purity>90% (verified by SDS-PAGE)
BufferTris-based, 50% glycerol
StorageLyophilized, -20°C (stable long-term)

The yeast-derived protein ensures proper folding and functional activity, critical for downstream applications like ELISA and protein interaction studies .

Comparative Insights from Homologs

Data from human and rodent UBL4A homologs highlight conserved functions and regulatory mechanisms:

OrganismKey Regulatory FactorsFunctional Impact
Human (Homo sapiens)HIV-1 Vif interaction Viral pathogenesis modulation
Rat (Rattus norvegicus)Arsenite, cadmium exposure Altered protein stability and expression
Bat (Rhinolophus ferrumequinum)Predicted stress-responsive motifs Hypothesized role in antiviral defense

Challenges and Future Directions

  • Knowledge Gaps: Structural and mechanistic data specific to the bat UBL4A remain sparse .

  • Potential Studies:

    • Crystallography: Resolve 3D structure to identify unique bat-specific domains.

    • Pathogen Interaction: Explore roles in bat antiviral immunity, given their resistance to viruses like coronaviruses.

Product Specs

Form
Lyophilized powder. Note: We will preferentially ship the format we have in stock. If you have special format requirements, please note them when ordering, and we will fulfill your request.
Lead Time
Delivery times may vary based on purchasing method and location. Please consult your local distributor for specific delivery times. Note: All proteins are shipped with standard blue ice packs. For dry ice shipping, please contact us in advance; additional fees will apply.
Notes
Avoid repeated freeze-thaw cycles. Working aliquots can be stored at 4°C for up to one week.
Reconstitution
Briefly centrifuge the vial before opening to collect contents at the bottom. Reconstitute the protein in sterile deionized water to a concentration of 0.1-1.0 mg/mL. We recommend adding 5-50% glycerol (final concentration) and aliquoting for long-term storage at -20°C/-80°C. Our default final glycerol concentration is 50% for your reference.
Shelf Life
Shelf life depends on several factors, including storage conditions, buffer components, storage temperature, and protein stability. Generally, the liquid form has a shelf life of 6 months at -20°C/-80°C, while the lyophilized form has a shelf life of 12 months at -20°C/-80°C.
Storage Condition
Store at -20°C/-80°C upon receipt. Aliquot for multiple uses. Avoid repeated freeze-thaw cycles.
Tag Info
The tag type will be determined during the manufacturing process. If you require a specific tag type, please inform us, and we will prioritize developing it.
Synonyms
UBL4A; Ubiquitin-like protein 4A
Buffer Before Lyophilization
Tris/PBS-based buffer, 6% Trehalose.
Datasheet
Please contact us to get it.
Expression Region
1-160
Protein Length
full length protein
Purity
>85% (SDS-PAGE)
Species
Rhinolophus ferrumequinum (Greater horseshoe bat)
Target Names
UBL4A
Target Protein Sequence
MQLTVKALQG RECSLQVSED ELVSTLKHVV SEKLNVPVRQ QRLLFKGKAL ADGKRLSDYS IGPNSKLNLV VKPLEKVLLE ESAAACRLTE APLPRPPAWQ LIAKVLARHF SAADASRVLD QLQRDYERSL SRLTLDDIER LASRFLHPEV TEAVEKGFSK
Uniprot No.

Target Background

Function
The BAG6/BAT3 complex, a cytosolic protein quality control complex, maintains misfolded and hydrophobic patch-containing proteins in a soluble state. It facilitates their delivery to the endoplasmic reticulum or directs them to the proteasome for degradation. This complex is involved in the post-translational delivery of tail-anchored/type II transmembrane proteins to the endoplasmic reticulum membrane. By associating with ribosomes, it interacts with the transmembrane region of newly synthesized tail-anchored proteins. Along with SGTA and ASNA1, it mediates their delivery to the endoplasmic reticulum. Client proteins failing delivery to the endoplasmic reticulum are ubiquitinated and sorted for proteasomal degradation. The BAG6/BAT3 complex also acts as a sorting platform for mislocalized secretory pathway proteins in the cytosol, targeting them for proteasomal degradation or directing them to the endoplasmic reticulum. Furthermore, this complex plays a role in endoplasmic reticulum-associated degradation (ERAD), a quality control mechanism. It maintains retrotranslocated ER proteins in an unfolded but soluble state in the cytosol, ensuring their proper delivery to the proteasome.
Subcellular Location
Cytoplasm, cytosol. Nucleus.

Q&A

Given the specific focus on Recombinant Rhinolophus ferrumequinum Ubiquitin-like protein 4A (UBL4A), here is a collection of FAQs tailored for researchers:

Data Analysis for Contradictory Findings

  • Q: How can researchers analyze data when there are contradictory findings regarding the role of UBL4A in different species?

  • A: Researchers should employ meta-analysis techniques to pool data from various studies, considering factors like experimental design, species differences, and environmental conditions. Phylogenetic analysis can also help understand evolutionary pressures on UBL4A across species.

Advanced Research Questions: Evolutionary Conservation

  • Q: What methods can be used to investigate the evolutionary conservation of UBL4A across different vertebrates?

  • A: Phylogenetic analysis using tools like MEGA or PAML can help assess the evolutionary pressures on UBL4A. By comparing UBL4A sequences across species, researchers can identify conserved regions and infer functional importance.

Methodological Considerations for Recombinant Protein Expression

  • Q: What are the key considerations for expressing recombinant UBL4A in a heterologous system?

  • A: When expressing recombinant UBL4A, researchers should consider factors like host cell line choice (e.g., E. coli, mammalian cells), optimal expression conditions (temperature, inducer concentration), and purification strategies to ensure high yield and purity of the protein.

Contrasting UBL4A and UBL4B Functions

  • Q: How can researchers differentiate between the functions of UBL4A and its autosomal retrogene UBL4B in vertebrates?

  • A: By using knockout models for both UBL4A and UBL4B, researchers can assess their individual and combined roles in cellular processes. This approach helps identify any functional redundancy or specificity between the two proteins.

Advanced Techniques for Protein-Protein Interaction Studies

  • Q: What advanced techniques can be used to study protein-protein interactions involving UBL4A?

  • A: Techniques such as co-immunoprecipitation (Co-IP), proximity ligation assay (PLA), and mass spectrometry-based proteomics can be employed to identify and characterize UBL4A interactions with other proteins.

Data Interpretation in the Context of Immune Response

  • Q: How can researchers interpret data on UBL4A's role in immune responses, particularly in dendritic cells and macrophages?

  • A: By analyzing NF-κB signaling pathways and immune cell activation assays, researchers can determine how UBL4A modulates immune responses. This involves assessing cytokine production, cell proliferation, and survival in the presence or absence of UBL4A.

Comparative Analysis Across Species

  • Q: What methods can be used to compare the function of UBL4A across different species, such as Rhinolophus ferrumequinum and humans?

  • A: Comparative genomics and functional genomics approaches can be used to align UBL4A sequences and assess functional conservation. Additionally, cross-species expression studies can help identify conserved roles in cellular processes.

Advanced Research Questions: Role in Disease Models

  • Q: How can researchers investigate the potential role of UBL4A in disease models, such as cancer or neurodegenerative diseases?

  • A: By using disease-specific cell or animal models, researchers can overexpress or knockdown UBL4A to assess its impact on disease progression. This involves analyzing markers of disease severity, cell viability, and molecular pathways affected by UBL4A.

Methodological Considerations for Structural Studies

  • Q: What are the key considerations for determining the structural properties of recombinant UBL4A?

  • A: Techniques such as X-ray crystallography, NMR spectroscopy, and molecular dynamics simulations can be used to determine the structure of UBL4A. These methods provide insights into its folding, stability, and potential binding sites for other proteins.

Table: Comparison of UBL4A and UBL4B Functions

FeatureUBL4AUBL4B
Chromosomal LocationX chromosomeAutosomal
Expression PatternUbiquitousTestis-specific
Evolutionary PressureUnder purifying selectionUnder strong purifying selection
Role in Immune ResponseRegulates NF-κB signaling in dendritic cells and macrophagesNot well-defined
Role in SpermatogenesisDispensableDispensable

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